<html>
  <head>
    <link rel="stylesheet" type="text/css" href="ahem.css" />
  <style>
html,body {
    color:black; background-color:white; font-size:16px; padding:5px; margin:0;
}
mask {
  position: absolute;
  top:0; bottom:0; left:8px; width:5px;
  background: black;
}

.rel {
  position: relative;
}
.columns {
  -moz-column-width: 12em;
  -moz-column-gap: 0;
  -moz-column-fill: auto;
  height: 8em;
  font-family: ahem;
  font-size: 12pt;
  line-height: 1.1;
}
a {
  position: absolute;
  width: 10px;
  height: 10px;
  bottom: 0;
  left: 0;
  background: blue;
}
f {
  position: fixed;
  width: 10px;
  height: 10px;
  bottom: 0;
  left: 100px;
  background: lime;
}
  </style>
  </head>

  <body>
    <div class="columns rel">
      <a></a>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Sed
    </div>

    <div class="columns rel" style="overflow: hidden">
      <a></a>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Sed
    </div>

    <div class="columns rel" style="overflow: hidden">
      <f></f>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Sed
    </div>

    <div class="columns" style="overflow: hidden">
      <a></a>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Sed
    </div>

    <div class="columns" style="overflow: hidden">
      <f style="left:120px"></f>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Sed
    </div>

<mask></mask>
  </body>
</html>
